AKIPRESS.COM - The UK Prime Minister tweeted: "Over the last 24 hours I have developed mild symptoms and tested positive for coronavirus, Sky News reports.
"I am now self-isolating, but I will continue to lead the government's response via video-conference as we fight this virus.
Downing Street said Mr Johnson had been tested on the advice of his chief medical officer Professor Chris Whitty, having been experiencing "mild symptoms" on Thursday.
"The test was carried out in No 10 by NHS staff and the result of the test was positive," the statement added.
"In keeping with the guidance, the Prime Minister is self-isolating in Downing Street.